Calian HC977XF Triple-Band Helical Antenna with L-Band
High-Precision Antenna for Clean Signal Reception
Calian HC977XF Triple-Band GNSS Helical Antenna is designed for precision GNSS positioning, supporting GPS, GLONASS, Galileo, BeiDou, NavIC, and L-Band correction services. With eXtended Filtering (XF) technology, it mitigates interference from new and existing LTE signals, ensuring optimal performance. Weighing only 42 grams, HC977XF is ideal for UAVs and other demanding applications, offering reliable performance in harsh environments.
HC977XF Triple-Band Helical Antenna with L-Band Technical Specifications
GNSS Coverage | |
GPS / QZSS | L1, L2, L5 |
GLONASS | G1, G2, G3 |
Galileo | E1, E5A, E5B |
BeiDou | B1, B2, B2a |
IRNSS / NavIC | L5 |
QZSS | - |
L-Band Services (1525 MHz - 1559 MHZ) | 1.5 dBic typ. at Zenith (Gain) |
Low Noise Amplifier (LNA) | |
Architecture | Pre-filter → LNA |
Gain | 28 dB typ. | 35 dB typ. |
Noise Figure | 2.5 dB typ. |
Supply Voltage Range | 2.2 to 16 VDC |
Supply Current | 25 mA typ. (28 dB) | 31 mA typ. (35 dB) |
Mechanicals | |
Size | 44.2 mm (dia.) x 62.4 mm (h.) |
Weight | 42 g |
Radome | Radome and Base: EXL9330 |
Mount | 3x M2.5 screws |
Available Connectors | SMA (male) |
Why Choose the HC977XF Triple-Band Helical Antenna with L-Band?
Extremely light (42 g)
Ideal for RTK and PPP surveying systems
Excellent RH circular polarized signal reception
Great multipath rejection
Increased system accuracy
Excellent signal-to-noise ratio
Rugged design, ideal for harsh environments
Industrial temperature range
Extended RF Filtering
What Is the HC977XF Triple-Band Helical Antenna with L-Band Used For?
Typical applications of the HC977XF Triple-Band Helical Antenna with L-Band include:
RTK and high-precision positioning for autonomous machines
UAV, drone and robotics navigation
Automotive testing, telematics and fleet tracking
Marine navigation and heading systems
Surveying, mapping and precision agriculture
Ordering Information
Part Number: 33-HC977XF-xx
where xx = gain (28 or 35 dB)
Please refer to Tallysman's Ordering Guide to review available radomes and connectors at: https://www.tallysman.com/resource/tallysman-ordering-guide/
Frequently Asked Questions
What is the HC977XF Triple-Band Helical Antenna with L-Band?
Calian HC977XF Triple-Band GNSS Helical Antenna is designed for precision GNSS positioning, supporting GPS, GLONASS, Galileo, BeiDou, NavIC, and L-Band correction services. With eXtended Filtering (XF) technology, it mitigates interference from new and existing LTE signals, ensuring optimal performance.
Which GNSS signals does the HC977XF Triple-Band Helical Antenna with L-Band support?
Supported constellations and frequency bands are listed in the specifications table above. Matching the antenna to your receiver’s supported signals is the key selection criterion — contact Leo Drive if you need help pairing the HC977XF Triple-Band Helical Antenna with L-Band with your GNSS receiver.
Where is the HC977XF Triple-Band Helical Antenna with L-Band available?
The HC977XF Triple-Band Helical Antenna with L-Band is available through Leo Drive in the following region: Turkey. For other regions, please contact Leo Drive.
How can I get the datasheet and technical documents for the HC977XF Triple-Band Helical Antenna with L-Band?
The datasheet, user manual and other technical documents for the HC977XF Triple-Band Helical Antenna with L-Band are available on the manufacturer’s website. You can also contact Leo Drive for documentation and integration support.
Explore More at Leo Drive
The HC977XF Triple-Band Helical Antenna with L-Band is part of the GNSS Antennas range at Leo Drive. Browse all autonomous vehicle sensors and components, or talk to our engineering team about integration in your project.

